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Longines · Heritage

Strap for Military 1938 24H

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width

20mm
20 mm strapsAll Longines
Lug width20 mm
Case diameter42 mm
ReferenceL2.789.4.53.0 (aka: L27894530)
FamilyHeritage
MovementLongines caliber L704.2 Hours, Minutes, Seconds, Additional 24 Hour Hand (adjustable) | Date
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

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Straps for the Heritage L2.789.4.53.0 (aka: L27894530)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Heritage L2.789.4.53.0 (aka: L27894530), seen from the bench

The Longines Heritage in the L2.789.4.53.0 (aka: L27894530) reference features the L704.2 caliber with hours, minutes, seconds and adjustable GMT hand, complemented by a date display. The movement offers a second time zone through the dedicated fourth hand for the additional time zone. The GMT complication allows the simultaneous reading of two different time zones.

Frequently asked questions

What is the lug width of the Longines Heritage L2.789.4.53.0?

The lug width of the Longines Heritage L2.789.4.53.0 is 20 millimetres. This dimension is specific to the model and represents the geometric space where the strap is inserted between the two lugs of the case. A 20mm strap width is the standard format compatible with this reference.

Which strap is recommended for the Longines Heritage L2.789.4.53.0?

For the Longines Heritage L2.789.4.53.0, straps in alligator, vegetable-tanned calf, or sports canvas are recommended. Black or cognac alligator offers formal elegance, bourbon calf presents soft hand and natural patina, while military grey-green canvas emphasises the vintage sporting heritage of the chronograph.

How do I change the strap on the Longines Heritage L2.789.4.53.0?

Strap removal is achieved by removing the metal pins (which protrude from the lugs) using a dedicated tool or spring bar remover. Gently unscrew the pin, extract the old strap and insert the new one by positioning one end first, then the other. A straightforward operation requiring only seconds and no technical expertise.

Is the strap for the Longines Heritage L2.789.4.53.0 aftermarket compatible?

Yes, any 20mm width strap is compatible with the Longines Heritage L2.789.4.53.0. An aftermarket strap guarantees aesthetic flexibility and allows rapid changeover depending on context of use. Milano Straps supplies 20mm artisanal straps with fast shipping and customisation.

What is the average lifespan of a leather strap for the Longines Heritage L2.789.4.53.0?

A leather strap of artisanal quality, with vegetable tanning (alligator or calf), maintains structural integrity between 3 and 5 years of daily wear. Lifespan depends on sun exposure, humidity and regular maintenance. Leather ageing is natural and desirable, generating patina and character. Casati Milano guarantees custom straps for 18 months.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only